Add notes that tkinter modules will be renamed.
diff --git a/Doc/library/tix.rst b/Doc/library/tix.rst
index ff2cfff..dea88fa 100644
--- a/Doc/library/tix.rst
+++ b/Doc/library/tix.rst
@@ -22,6 +22,11 @@
design your application by choosing the most appropriate widgets to match the
special needs of your application and users.
+.. note::
+
+ :mod:`Tix` has been renamed to :mod:`tkinter.tix` in Python 3.0. The
+ :term:`2to3` tool will automatically adapt imports when converting your
+ sources to 3.0.
.. seealso::